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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
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Hammer Top Bells
These make great doorbells when used with a push button.
Transformers (sold separetely) cannot be sold to California due to local energy efficiency requirements.
Mounting Holes | |||||||||||
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| Voltage | Current | Volume | Sound Pattern | Bell Dia. | Ht. | Material | Fasteners Included | No. of | Dia. | Each | |
With Screw Terminals | |||||||||||
| 6V DC, 8V AC | 0.8 A @ 6 V DC, 1 A @ 8 V AC | 74 dBA @ 10 ft. | Continuous | 6" | 10 5/8" | Steel | No | 3 | 1/4" | 00000000 | 0000000 |
| 6V DC, 8V AC | 1 A @ 6 V DC, 1 A @ 8 V AC | 90 dBA @ 10 ft. | Continuous | 2 1/2" | 5 3/4" | Steel | No | 2 | 3/16" | 00000000 | 00000 |
| 6V DC, 8V AC | 1 A @ 6 V DC, 1 A @ 8 V AC | 90 dBA @ 10 ft. | Continuous | 4" | 6 7/8" | Steel | No | 2 | 3/16" | 00000000 | 00000 |
| 24V AC | 0.2 A @ 24 V AC | 74 dBA @ 10 ft. | Continuous | 6" | 10 5/8" | Steel | No | 3 | 1/4" | 00000000 | 000000 |
| 24V AC | 0.2 A @ 24 V AC | 68 dBA @ 10 ft. | Continuous | 4" | 7 3/8" | Steel | No | 3 | 1/4" | 00000000 | 00000 |